Практикум по программированию. Основы. Циклы. Число Фибоначчи
From AsIsWiki
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==Java== | ==Java== | ||
| − | < | + | <source lang="java"> |
import java.util.Scanner; | import java.util.Scanner; | ||
| Line 14: | Line 14: | ||
public static void main(String[] args) { | public static void main(String[] args) { | ||
| − | + | ||
Scanner in = new Scanner(System.in); | Scanner in = new Scanner(System.in); | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | System.out. | + | System.out.println(); |
| − | + | System.out.println(" Поиск числа Фибоначчи с заданным номером N"); | |
| + | System.out.println("--------------------------------------------"); | ||
| − | System.out. | + | System.out.print(" Введите номер числа N: "); |
| − | + | int n = in.nextInt(); | |
| − | + | ||
| − | + | double a = 1, b = 1, c; | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | for (int i = 1; i < n; i++) { | |
| + | c = a + b; | ||
| + | a = b; | ||
| + | b = c; | ||
| + | } | ||
| + | |||
| + | System.out.println("--------------------------------------------"); | ||
| + | System.out.printf(" F(%d) = %.2f\n", n, a); | ||
} | } | ||
} | } | ||
| − | </ | + | </source> |
==C++== | ==C++== | ||
| − | < | + | <source lang="cpp"> |
| − | </ | + | // g++ 4.2 |
| + | |||
| + | #include <iostream> | ||
| + | |||
| + | using namespace std; | ||
| + | |||
| + | int main() { | ||
| + | |||
| + | int n; | ||
| + | |||
| + | cout << "\n Поиск числа Фибоначчи с заданным номером N\n"; | ||
| + | cout << "--------------------------------------------\n"; | ||
| + | |||
| + | cout << " Введите номер числа N: "; | ||
| + | cin >> n; | ||
| + | |||
| + | double a = 1, b = 1, c; | ||
| + | |||
| + | for (int i = 1; i < n; i++) { | ||
| + | c = a + b; | ||
| + | a = b; | ||
| + | b = c; | ||
| + | } | ||
| + | |||
| + | cout << "--------------------------------------------\n"; | ||
| + | printf(" F(%d) = %.2f\n\n", n, a); | ||
| + | |||
| + | return 0; | ||
| + | } | ||
| + | </source> | ||
| + | |||
| + | |||
| + | ==Python== | ||
| + | |||
| + | <source lang="cpp"> | ||
| + | # Python 3 | ||
| + | |||
| + | print('\n Поиск числа Фибоначчи с заданным номером N') | ||
| + | print('--------------------------------------------') | ||
| + | |||
| + | n = int(input(' Введите номер числа N: ')) | ||
| + | |||
| + | a = 1; b = 1 | ||
| + | for i in range(1, n): | ||
| + | c = a + b | ||
| + | a = b | ||
| + | b = c | ||
| + | |||
| + | print('--------------------------------------------') | ||
| + | print(' F(%d) = %.2f' % (n, a)) | ||
| + | </source> | ||
==Pascal== | ==Pascal== | ||
| − | < | + | <source lang="delphi"> |
| − | </ | + | </source> |
| + | |||
| + | |||
| + | ==JavaScript== | ||
| + | |||
| + | <source lang="js"> | ||
| + | <html lang="ru"> | ||
| + | <head> | ||
| + | <meta charset="UTF-8"> | ||
| + | <script> | ||
| + | function calc() { | ||
| + | var n = document.getElementById("nId").value; | ||
| + | |||
| + | var a = 1, b = 1, c; | ||
| + | |||
| + | for (var i = 1; i < n; i++) { | ||
| + | c = a + b; | ||
| + | a = b; | ||
| + | b = c; | ||
| + | } | ||
| + | |||
| + | document.getElementById("resultId").innerHTML = " F(" + n + ") = " + a; | ||
| + | } | ||
| + | </script> | ||
| + | </head> | ||
| + | <body> | ||
| + | |||
| + | <p>Поиск числа Фибоначчи с заданным номером N</p> | ||
| + | <hr> | ||
| + | <p>Введите номер числа N: <input id="nId" size="5"></p> | ||
| + | <hr> | ||
| + | <p id="resultId"></p> | ||
| + | |||
| + | <button onclick="calc()">Рассчитать</button> | ||
| + | |||
| + | </body> | ||
| + | </html> | ||
| + | </source> | ||
Latest revision as of 09:19, 23 November 2017
Contents |
[edit] Java
import java.util.Scanner;
public class Task05 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println();
System.out.println(" Поиск числа Фибоначчи с заданным номером N");
System.out.println("--------------------------------------------");
System.out.print(" Введите номер числа N: ");
int n = in.nextInt();
double a = 1, b = 1, c;
for (int i = 1; i < n; i++) {
c = a + b;
a = b;
b = c;
}
System.out.println("--------------------------------------------");
System.out.printf(" F(%d) = %.2f\n", n, a);
}
}
[edit] C++
// g++ 4.2
#include <iostream>
using namespace std;
int main() {
int n;
cout << "\n Поиск числа Фибоначчи с заданным номером N\n";
cout << "--------------------------------------------\n";
cout << " Введите номер числа N: ";
cin >> n;
double a = 1, b = 1, c;
for (int i = 1; i < n; i++) {
c = a + b;
a = b;
b = c;
}
cout << "--------------------------------------------\n";
printf(" F(%d) = %.2f\n\n", n, a);
return 0;
}
[edit] Python
# Python 3
print('\n Поиск числа Фибоначчи с заданным номером N')
print('--------------------------------------------')
n = int(input(' Введите номер числа N: '))
a = 1; b = 1
for i in range(1, n):
c = a + b
a = b
b = c
print('--------------------------------------------')
print(' F(%d) = %.2f' % (n, a))
[edit] Pascal
[edit] JavaScript
<html lang="ru">
<head>
<meta charset="UTF-8">
<script>
function calc() {
var n = document.getElementById("nId").value;
var a = 1, b = 1, c;
for (var i = 1; i < n; i++) {
c = a + b;
a = b;
b = c;
}
document.getElementById("resultId").innerHTML = " F(" + n + ") = " + a;
}
</script>
</head>
<body>
<p>Поиск числа Фибоначчи с заданным номером N</p>
<hr>
<p>Введите номер числа N: <input id="nId" size="5"></p>
<hr>
<p id="resultId"></p>
<button onclick="calc()">Рассчитать</button>
</body>
</html>